This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 6 Life Processes – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 6 Life Processes Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The back flow of blood during the pumping of blood by heart is prevented by: A) Walls of ventricles. B) Walls of atrium. C) Valves in heart. D) Walls between atria and ventricles. Show Answer Correct Answer: C) Valves in heart. 2. What type of nutrition is followed by amoeba? A) Parasitic. B) Holozoic. C) Saphrotrophic. D) Autotrophic. Show Answer Correct Answer: B) Holozoic. 3. The cellular energy reserves in autotrophs are ..... A) Glycogen. B) Starch. C) Protein. D) Fatty acids. Show Answer Correct Answer: A) Glycogen. 4. Photosynthesis is: A) Trapping energy of sunlight to form glucose. B) Synthesis of photosensitive compounds. C) Oxidation of glucose. D) Oxidation of carbon dioxide. Show Answer Correct Answer: A) Trapping energy of sunlight to form glucose. 5. Which of these is the simplest form of food? A) Rice. B) Wheat. C) Butter. D) Glucose. Show Answer Correct Answer: D) Glucose. 6. Saliva contains the enzyme named: A) Pepsin. B) Amylase. C) Luciferase. D) None of the above. Show Answer Correct Answer: B) Amylase. 7. In which part of the alimentary canal does digestion of protein begin? A) Small intestine. B) Buccal cavity. C) Stomach. D) Oesophagus. Show Answer Correct Answer: C) Stomach. 8. ..... is the force of blood on the walls of the blood vessels. A) Pulse. B) Heart rate. C) Blood Pressure. D) Hypertension. Show Answer Correct Answer: C) Blood Pressure. 9. A person sweats to keep body temperature at a safe level A) Nutrition. B) Digestion. C) Homeostasis. D) Circulation. Show Answer Correct Answer: C) Homeostasis. 10. A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains A) Complex proteins. B) Simple proteins. C) Fats. D) Starch. Show Answer Correct Answer: D) Starch. 11. Pulmonary vein opens at: A) Right auricle. B) Left auricle. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: B) Left auricle. 12. Contraction in the right ventricle pumps blood into the A) Aorta. B) Pulmonary vein. C) Pulmonary artery. D) Coronary artery. Show Answer Correct Answer: C) Pulmonary artery. 13. During respiration exchange of gases takes place in ..... A) Trachea and Larynx. B) Alveoli of Lungs. C) Alveoli and Throat. D) Throat and Larynx. Show Answer Correct Answer: B) Alveoli of Lungs. 14. The vein which brings clean blood from the lungs into the heart is known as: A) Pulmonary vein. B) Hepatic vein. C) Superior Vena Cava. D) Pulmonary artery. Show Answer Correct Answer: D) Pulmonary artery. 15. Which is the correct air passage in the breathing mechanism? A) Nostril, nasal cavity, pharynx, larynx, trachea, bronchus, bronchiole, alveolus. B) Nostril, nasal cavity, larynx, pharynx, trachea, bronchus, bronchiole, alveolus. C) Nostril, nasal cavity, pharynx, larynx, trachea, bronchiole, bronchus, alveolus. D) Nostril, nasal cavity, trachea, larynx, pharynx, bronchus, bronchiole, alveolus. Show Answer Correct Answer: A) Nostril, nasal cavity, pharynx, larynx, trachea, bronchus, bronchiole, alveolus. 16. Among the following choose the correct option which includes the organisms that have a holozoic mode of nutrition: A) Plasmodium and Amoeba. B) Parakeet and Amoeba. C) Paramecium and Plasmodium. D) Paramecium and Parasite. Show Answer Correct Answer: B) Parakeet and Amoeba. 17. The blood vessels that carry blood back to the heart is ..... A) Artery. B) Vein. C) Capillary. D) Platelets. Show Answer Correct Answer: B) Vein. 18. Name the pores in a leaf through which respi-ratory exchange of gases takes place. A) Lenticels. B) Vacuoles. C) Xylem. D) Stomata. Show Answer Correct Answer: D) Stomata. 19. Bile juice is released by A) Liver. B) Small intestine. C) Large intestine. D) Stomach. Show Answer Correct Answer: A) Liver. 20. Organisms are made of at least two cells A) Multicellular. B) Unicellular. C) All the above. D) None of the above. Show Answer Correct Answer: A) Multicellular. 21. How many types of respiration are there? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: B) 2. 22. Where in the cell does anaerobic respiration take place? A) Nucleus. B) Cytoplasm. C) Mitochondria. D) Cell membrane. Show Answer Correct Answer: C) Mitochondria. 23. When do plants do most of their respiration? A) Daytime. B) Nighttime. C) All the above. D) None of the above. Show Answer Correct Answer: B) Nighttime. 24. What is photosynthesis? A) The process in which humans eat their food. B) When a photographer takes a photo. C) To get your pictures from the photo lab. D) The process in which plants make their food. Show Answer Correct Answer: D) The process in which plants make their food. 25. What is the final product of photosynthesis? A) Protein. B) Fat. C) Starch. D) Mineral salt. Show Answer Correct Answer: C) Starch. ← PreviousNext →Related QuizzesClass 10 Science Chapter 6 Life Processes Quiz 1Class 10 Science Chapter 6 Life Processes Quiz 2Class 10 Science Chapter 6 Life Processes Quiz 3Class 10 Science Chapter 6 Life Processes Quiz 4Class 10 Science Chapter 6 Life Processes Quiz 6Class 10 Science Chapter 6 Life Processes Quiz 7Class 10 Science Chapter 6 Life Processes Quiz 8Class 10 Science Chapter 6 Life Processes Quiz 9Class 10 Science Chapter 6 Life Processes Quiz 10Class 10 Science Chapter 6 Life Processes Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books